EP2672768A2 - Procédé de communication mobile sans fil - Google Patents

Procédé de communication mobile sans fil Download PDF

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Publication number
EP2672768A2
EP2672768A2 EP13170880.2A EP13170880A EP2672768A2 EP 2672768 A2 EP2672768 A2 EP 2672768A2 EP 13170880 A EP13170880 A EP 13170880A EP 2672768 A2 EP2672768 A2 EP 2672768A2
Authority
EP
European Patent Office
Prior art keywords
base station
core network
mobile station
femto
mobile communication
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP13170880.2A
Other languages
German (de)
English (en)
Other versions
EP2672768A3 (fr
Inventor
Huai-Lei Fu
Phone Lin
Yi-Bing Lin
Ying-Rong Sung
Hsin-Hann Tsai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Arcadyan Technology Corp
Original Assignee
Arcadyan Technology Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Arcadyan Technology Corp filed Critical Arcadyan Technology Corp
Publication of EP2672768A2 publication Critical patent/EP2672768A2/fr
Publication of EP2672768A3 publication Critical patent/EP2672768A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0203—Power saving arrangements in the radio access network or backbone network of wireless communication networks
    • H04W52/0206—Power saving arrangements in the radio access network or backbone network of wireless communication networks in access points, e.g. base stations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H04W68/02—Arrangements for increasing efficiency of notification or paging channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/042—Public Land Mobile systems, e.g. cellular systems
    • H04W84/045—Public Land Mobile systems, e.g. cellular systems using private Base Stations, e.g. femto Base Stations, home Node B
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the disclosure relates in general to a wireless mobile communication method.
  • UMTS universal mobile telecommunication system
  • MS mobile station
  • UTRAN UMTS terrestrial radio access network
  • CN core network
  • the mobile station is a mobile station equipment for a user, such as a mobile phone.
  • the user may make a phone call or get on the Internet through the MS.
  • the UTRAN which enables the mobile station to access the core network, includes a radio network subsystem (RNS).
  • the RNS includes a radio network controller (RNC) and several macro base stations (MBS).
  • the macro base station provides radio transmission and reception for one or more than one mobile phone.
  • the RNC controls the use of radio resources.
  • the core network controls the exchange of signaling.
  • the core network is coupled to an external network such as a public switched telephone network (PSTN such as an ordinary landline and mobile phone), an integrated services digital network (ISDN) and an Internet.
  • PSTN public switched telephone network
  • ISDN integrated services digital network
  • Internet an Internet
  • the mobile communication network includes many cells. Each base station has its respective coverage, system capacity, and output power. Based on the coverage (or output power), the base stations are further divided into different categories such as macro base stations, microcell base stations, Picocell base stations and Femto base stations.
  • the microcell base station and the Picocell base station may increase network transmission capacity.
  • the Femto cell technology has the advantage of low establishment cost and can be used for supporting wireless mobile communication in an indoor environment.
  • the Femto base station having a smaller coverage, is mainly used for covering up the area not covered by other base stations.
  • the Femto base station is normally used in a residential housing or a small business environment (such as office).
  • the Femto base station is powered by battery whose duration can be effectively increased if power consumption and message overhead of the Femto base station can be reduced.
  • the disclosure is directed to a wireless mobile communication method.
  • a Femto gateway receives a paging signal sent from a core network
  • the Femto gateway blocks the paging signal and does not allow the paging signal to be sent to the Femto base station. So, the Femto base station does not send the paging signal to a destination mobile station. Instead, the paging signal is sent to a destination mobile station by a macro base station.
  • a wireless mobile communication method is provided. If a wireless mobile communication service arrives at a core network, the core network sends a paging signal to at least one macro base station and at least one Femto gateway. After the macro base station receives the paging signal, the macro base station pages the at least one mobile station within the coverage of the macro base station. The Femto gateway blocks the paging signal sent from the core network, so that the at least one Femto base station covered by the Femto gateway does not page the mobile station. After a destination mobile station receives the paging signal, the destination mobile station establishes a signaling connection, so that a call to a destination mobile station is established.
  • FIG. 1 shows a system architecture diagram of a wireless mobile communication system according to an embodiment of the disclosure.
  • FIG. 2 shows a flowchart of wireless mobile communication according to an embodiment of the disclosure.
  • a Femto gateway blocks a paging signal sent from a core network, so that a Femto base station does not send the paging signal to a destination mobile station, hence reducing the paging cost (for example, power consumption and message overhead) of the Femto base station.
  • FIG. 1 shows a system architecture diagram of a wireless mobile communication system according to an embodiment of the disclosure.
  • a wireless mobile communication system 100 includes a radio network controller 110, a macro base station (MBS) 120, a Femto gateway (FGW) 130, several Femto base stations (FBS) 140 and a mobile station (MS) 150.
  • the radio network controller 110 and the Femto gateway 130 are connected to an Internet 170 through a core network (CN) 160.
  • CN core network
  • FIG. 1 shows one radio network controller 110, one Femto gateway 130, one mobile station 150 and five Femto base stations 140, but the disclosure is not limited thereto.
  • the quantity of each component is for exemplification purpose only, not for limiting the embodiments of the disclosure. In practical application, the quantity of each component is determined according to actual needs.
  • the wireless mobile communication system 100 may include more than one radio network controller 110, more than one Femto gateway 130, more than one mobile station and/or more than one Femto base station 140, and is still within the spirit of the disclosure.
  • the radio network controller 110 may be used as a communication interface between the core network 160 and the macro base station 120 for packet division, packet re-packaging, error detection and error recovery, so as to transmit and receive packets in the wireless mobile communication system.
  • the radio network controller 110 also monitors the macro base station connected thereto and obtains the position information of the mobile station within the coverage of the macro base station monitored by the radio network controller 110.
  • the operations and functions of the radio network controller 110 are not subjected to any specific restrictions as long as the requirements of the present embodiment of the disclosure are satisfied.
  • the macro base station 120 has a wider radio coverage (as indicated in Cell 1 of FIG. 1 ), but the Femto base station 140 has a narrower radio coverage (as indicated in cell 1 ⁇ cell 5 of FIG. 1 ).
  • the Femto base station 140 is within the coverage of the macro base station 120.
  • the macro base station 120 and the Femto base station 140 within its coverage both are operated in the same frequency band.
  • the radio coverage of the macro base station 120 may cover the radio coverage of hundreds of Femto base stations 140.
  • the mobile station 150 will select the base station having signal intensity, and can thus be connected to the core network 160 through the one of the macro base station 120 and the Femto base station 140 with larger signal intensity.
  • the mobile station 150 can further access an external Internet 170 through the core network 160.
  • Several Femto base stations within the coverage of the same macro base station will be grouped in the same location area. That is, the coverage of a macro base station is a location area, and an RNC can cover many location areas. Respective unique identification (ID) number is assigned to each location area, and is referred as a local area identification (LAI) number. Here, the same LAI is assigned to the coverage of the macro base station and the coverage of the Femto base station.
  • ID Respective unique identification
  • LAI local area identification
  • the mobile station 150 moves across the coverage of different macro base stations and enters the current location area form a previous location area, then the mobile station will activate registration function and report the LAI of the current location area to the mobile database of the core network.
  • the mobile station 150 moves within the coverage of the same macro base station but across the coverage of different Femto base station, then, the mobile station 150 does not need to register to the core network because the mobile station 150 does not exit the coverage of the current macro base station. That is, the mobile station 150 is still within the same location area and the LAI remains the same.
  • the macro base station 120 and/or the Femto base station 130 broadcasts its LAI through the broadcast control channel (BCCH), and the MS receives the broadcasting through the broadcast control channel for identifying the current LAI of the MS.
  • BCCH broadcast control channel
  • the call termination procedure is for routing a call to a destination MS.
  • the core network inquires the mobile data to obtain the LAI of the destination MS, and instructs all base stations of the LAI to call the destination MS.
  • the core network further establishes a call to the destination MS through the base station which receives the paging response from the destination MS.
  • the Femto base station pays paging cost (such as power consumption).
  • the macro base station 120 sends the paging signal to the destination MS and the paging signal sent to the destination MS from the macro base station 120 is blocked by the Femto gateway 130, so that the Femto base station will not receive the paging signal.
  • the Femto base station does not need to send the paging signal to the MS, and power consumption is further reduced.
  • the Femto base station does not need to send the paging signal to the MS. Instead, the MS receives the paging signal sent from the macro base station through the broadcast control channel.
  • step 205 if a wireless mobile communication service (whose destination is the MS) arrives at the core network 160, the core network inquires the mobile database to obtain the LAI of the destination MS.
  • the wireless mobile communication service such as a call, includes telephony service and/or data transmission service (that is, connection to the Internet), or a combination thereof.
  • the core network instructs all base stations (including macro base stations and the Femto gateways) in the same location area with the destination MS to page the destination MS.
  • the core network sends the paging signal to the RNC (which services the base stations) and/or the Femto gateway.
  • step 215 after the macro base station receive the paging signal, the macro base station establishes a paging and notification functional entity (PNFE) signal for sending the paging signal into the coverage of the macro base station, so as to page the destination MS.
  • the Femto gateway blocks the paging signal. That is, the Femto gateway will not send the PNFE signal.
  • the Femto gateway blocks the paging signal, so that the Femto base station covered by the Femto gateway will not receive the paging signal, and will not send the paging signal to the MS within the coverage of the Femto base station. Consequently, power consumption of the Femto base station is further reduced.
  • step 220 a signaling connection is established between the destination MS, the Femto base station (servicing the destination MS) and the Femto gateway for exchanging signaling.
  • the MS will check the ID of the strongest-signal-intensity base station stored in the MS. To put it in greater details, a base station intensity table is stored in an internal memory of the MS. The intensity list shows the signal intensities of the base stations which have ever serviced the MS. If the base station having largest signal intensity is the Femto base station, then the MS will listen to the signal sent by the Femto base station having largest signal intensity through the BCCH. The MS establishes a signaling connection for connecting to the Femto gateway through the Femto base station having largest signal intensity.
  • the MS establishes a signaling connection for connecting to the RNC through the macro base station.
  • step 225 after the destination MS receive the paging signal, the destination MS sends a paging response signal to the Femto base station which service the destination MS, the Femto gateway and the core network.
  • step 230 authentication and security protection are executed.
  • the core network executes authentication and security protection on the macro base station. If the macro base station passes the authentication and security protection executed by the core network, then the macro base station executes authentication and security protection on the destination MS, the Femto gateway and the Femto base station.
  • the core network executes call setup on the destination MS.
  • the core network executes call setup on the Femto gateway, the Femto base station and the destination MS.
  • step 240 in response to the call setup, the destination MS confirms the call. For example, the destination MS sends a call confirmation signal to the core network through the Femto gateway and the Femto base station.
  • step 245 the core network performs a radio access bearer (RAB) assignment.
  • RAB refers to a connection protocol between the mobile station and the core network.
  • destination MS sends an acknowledgement signaling to the Femto gateway, the Femto base station and the core network.
  • step 255 a connection is established between the destination MS and the Femto gateway, the Femto base station and the core network.
  • step 260 the core network sends a connection acknowledgement to confirm the connection between the core network and the destination MS, the Femto gateway, and the Femto base station.
  • step 265 a call to the destination MS is established. That is, the call is routed to destination MS, so that the destination MS transmit data through the Femto gateway, the Femto base station and the core network.
  • the destination MS may be connected to an external Internet.
  • the Femto base station does not need to page the MS because the macro base station executes MS paging. Therefore, the power consumed by the Femto base station for paging purpose is reduced (that is, the paging cost is reduced) without affecting MS paging.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
EP13170880.2A 2012-06-08 2013-06-06 Procédé de communication mobile sans fil Withdrawn EP2672768A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW101120767A TWI469599B (zh) 2012-06-08 2012-06-08 無線行動通訊方法

Publications (2)

Publication Number Publication Date
EP2672768A2 true EP2672768A2 (fr) 2013-12-11
EP2672768A3 EP2672768A3 (fr) 2016-11-16

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EP13170880.2A Withdrawn EP2672768A3 (fr) 2012-06-08 2013-06-06 Procédé de communication mobile sans fil

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US (1) US20130331111A1 (fr)
EP (1) EP2672768A3 (fr)
TW (1) TWI469599B (fr)

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CN105493590A (zh) * 2013-03-28 2016-04-13 奥兰治公司 使用独立的寻呼小区和接入小区在移动网络中进行寻呼

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WO2014155201A3 (fr) * 2013-03-28 2015-03-05 Orange Recherche de personnes dans des réseaux mobiles utilisant des cellules de recherche de personnes et des cellules d'accès indépendantes
CN105493590A (zh) * 2013-03-28 2016-04-13 奥兰治公司 使用独立的寻呼小区和接入小区在移动网络中进行寻呼
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Also Published As

Publication number Publication date
US20130331111A1 (en) 2013-12-12
EP2672768A3 (fr) 2016-11-16
TWI469599B (zh) 2015-01-11
TW201351939A (zh) 2013-12-16

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